Posted by **chad** on Monday, July 23, 2012 at 2:10pm.

It is a beautiful sunny day at Canada’s Wonderland. The U.V. index for this day is 8, or high, so sunscreen is a must for all people. The effectiveness of sunscreen is indicated by the sunscreen protection factor (SPF). The higher the SPF number the fewer U.V. rays can penetrate to burn the skin. When the protection factor (SPF), s, is known you can determine the percent, p, of the sun’s ultraviolet rays that pass through it by using the following mathematical model: p= 100/s

a) What are the asymptotes for this function? Interpret the meaning of the asymptotes based on the scope of the problem.

b) The sunbathers on the beach were using a sunscreen with SPF of 35.

What percent of the sun’s rays will pass through to skin?

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